<template>
  <h2>当前求和为:{{ sum }}</h2>
  <button @click="sum++">点我++</button>
  <hr>
  <h2>姓名：{{ name }}</h2>
  <h2>年龄：{{ age }}</h2>
  <h2>薪资：{{ job.j1.salary }}K</h2>
  <h2 v-show="person.car">座驾信息：{{ person.car }}</h2>

  <button @click="name+='~'">修改姓名</button>
  <button @click="age++">增长年龄</button>
  <button @click="job.j1.salary++">涨薪</button>

  <button @click="showRawPerson">输出最原始的person</button>
  <button @click="addCar">给人添加一台车</button>
  <button @click="person.car.name+='!'">换车名</button>
  <button @click="changePrice">换价格</button>


</template>

<script>
import {toRefs, reactive, ref, toRaw, markRaw} from "vue";

export default {
  name: "Demo",
  setup() {
    let sum = ref(0)
    let person = reactive({
      name: '张三',
      age: 18,
      job: {
        j1: {
          salary: 20
        }
      }
    })

    function showRawPerson() {
      const p = toRaw(person)
      p.age++
      console.log(p)

      //ref不行，reactive行
      // const sum = toRaw(sum)
      // console.log(sum)
    }

    function addCar() {
      let car = {name: '奔驰', price: 40}
      // person.car = car
      person.car = markRaw(car)
    }

    function changePrice(){
      person.car.price++
      console.log(person.car.price)
    }


    return {
      sum,
      person,
      ...toRefs(person),
      showRawPerson,
      addCar,
      changePrice
    }
  }
}
</script>
